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Joe Marine of No Film School has a short interview with two of the creators of the Black Betty, a deceptively old-school looking digital cinema camera. The Black Betty gets around one issue with the massive data processing and storage needs inherent to high-capacity, high-resolution video cameras by attacking it head-on. Rather than use the camera "merely" as a collection device, the creators have jammed into the machined aluminum case the guts of a Mac Mini, which means the camera not only has a powerful processing brain, but a built-in SSD drive, and can (in a pinch, or even by preference in the field) be used to edit and transmit the footage collected with the actual imaging system, which is based around the SI-2K Mini sensor, which shoots 1080p video at up to 30fps.

And obviously it’s not super practical to use the camera as your editor, grading station, or to review all your footage, but if you didn’t have another choice or you don’t have the resources, why not take advantage of something like that? Why not share your frame grabs over WiFi. Say I’m in the field and I need to get a still frame, or I need to get my footage off, and I have nothing. Sure, just upload it.

I hope they were aware that you can get much better performing embedded PC boards for the same amount of money as a Mac Mini. There's really no reason to use a Mac Mini in a custom case if all you want is to run Windows on it.

With it's low-noise, high-dynamic range sensor, over 10 f-stops of dynamic range are freely manipulatable with user generated Iridas look files, and IT-friendly connectivity through open PC platforms, battery-powered operation, and up to 4-hours of continuous shooting on a 160GB notebook hard drive round out an impressive array of digital cinema firsts in the industry.

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This looks like a very serious camera, maybe on par or somewhat in the same segment as the Red [red.com] cameras (I am not an expert on high-end videocameras however). Most cameras in this segment have some system of high-capacity SSD or spinning drive storage, usually with replaceable storage cartridges. I don't understand why they felt the need to build the camera in the article. In fact, the SI-2k (not mini) [siliconimaging.com] looks an awful lo

It's nowhere close to anything from RED in terms of image quality. The camera most like this in design is the Blackmagic Production Camera though the sensor puts it closer to the Blackmagic Pocket Cinema Camera.
None of this takes away from the sheer geeky cool of this project.

Generally digital cameras have to have some on-board processing capability, the only thing that is unusual here is they used an off the shelf compact desktop system rather then some embedded board or system on a chip type solution.

Their point is that more versatility in tools is a good thing. Perhaps a situation arises where you for some reason need to do something funky. Maybe you're reporting on a situation and want to send a still image back to your newspaper/website/network immediately when you get to a wifi spot.

Maybe you have rented this camera for a one-time use and have a limited budget and someone else is using the computer.

Components in general become more interchangeable in the future. Need your computer to be a camera? Attach a camera module to a CPU module - the handshaking happens and you have created a new device. How about a phone then? Add the phone module. The next wave of miniaturization is at hand.

It is, yet if people keep throwing money at manufacturers that are pushing everything towards walled gardens (with Apple being by far the worst), it's never going to happen. I've almost resigned myself to seeing the end of open computing in the next 10 years.

Until someone puts out a device built from the ground up to be a and as a result has higher build quality, better battery life, lower cost, higher performance and a more appropriate user interface. All of which can be achieved by removing all the unnecessary "non-camera" things and removing the joints between the modules.

Without a discrete GPU, a Mini is a pretty generic system that can be replicated by any number of mITX boards.

True.

However, there aren't many complete systems readily available, and that's key. You can build a small computer using a mini-ITX board, but you still have to add processor, cooling solution (this one is fairly big) and all the other stuff (WiFi, Bluetooth,...), and THEN build the camera. Plus being completely self contained means if it fails, all one really does is take it out, go to an Apple store, buy a new Mac Mini and shove it in. It's a lot tougher to go and buy a mini-ITX system to shove in (or run around town finding a computer store with the requisite parts).

In this case, the mini comes self contained and working out of the box - so they can concentrate on building a camera, and not on building a PC.

For its size, a mini makes a nice self-contained fully functional PC you can carry around.

Plus, as a bonus, it can run OS X, because there's still plenty who do use stuff like Final Cut Pro. And a lot of filmmakers are keen on Apple stuff - if you look, a lot of the film crew are lugging around MacBook Pros or increasingly these days, iPads.

In hindsight they could have just as well started from a different platform.

Are there many other PCs as small as a Mac Mini?

In this case, it sounds like they started with the smallest thing they could find, put whatever software onto it they needed, and built this case around it.

Sounds like it's far easier to work with something that has already been designed and built to be that small instead of trying to do it yourself -- because if it was harder, they probably wouldn't have done it.

You can get smaller PCs however most of them you'll have to build it yourself. And the cooling is not always great. There's also part compatibility. I built one from the Intel NUC system. It was pricey and you had to compromise and have to use mSATA SSDs. From the article, one of main points of Mac Mini was being able to use unregulated 12V. The NUC requires a separate 19V power pack which doesn't fit well into what these guys were doing.

This is the PC market we're talking about here. Just about anything you can think of, there's already some speciality vendor out there trying to fill the niche. The NUC is just the tip of the iceberg.

A specialty vendor would be beside the point. If you a replacement Mac Mini or another one, you go down to Best Buy or Apple or whoever and simply buy one.

You mean like my Mini that cooked itself? The one I mentioned in the post you were responding too?

If you can't take care of your own equipment that's not on me. I don't what you did. Did you leave it under a blanket with no ventilation? Co-location uses hundreds of Mac minis because they require little cooling. But your one use case is completely indicative of every Mac Mini out there?

Apple gear is nothing special in this regard despite of all of the mindless and unjustified accolades they get.

Because you can't see past the specs you think are important. Those specs are not important to everyone. In this specific case, using regulated 12V power was important. Not important in my case as I use my Intel NUC

If you read the original source [blackbettycameras.com], they did start with a different platform.
"I started building a small Mini ITX PC and put it inside a metal frame. Using some parts from a low mode cage from an elderly Glidecam V20, I mounted the camera with odds and ends into a basic camera shape. It was magnificently sucky; The computer heat failed within a week!"
The Mac mini can also run on "unregulated 12V power when the power supply was removed; this was a huge discovery! It removed the need to add any voltage regulation into the camera design."
- Jasen.

Did you see it has a monitor? Off-body monitors are how digital camera operators view through the lens today, for the most part. Yes, for some handheld or shoulder-mounted work, operators use monocular viewfinders, but on digital rigs they're still built around a miniature lowres LCD panel anyways.